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    Hindered hydroxyphenylalkanoates of thioether isopropanols and stabilized compositions
    3.
    发明授权
    Hindered hydroxyphenylalkanoates of thioether isopropanols and stabilized compositions 失效
    硫醚异丙醇的受阻羟基苯基链烷酸酯和稳定的组合物

    公开(公告)号：US4071497A

    公开(公告)日：1978-01-31

    申请号：US649007

    申请日：1976-01-14

    申请人： Martin Dexter ,  David Herbert Steinberg

    发明人： Martin Dexter ,  David Herbert Steinberg

    IPC分类号： C08K5/134 ,  C08K5/37

    CPC分类号： C08K5/1345 ,  C10M2207/281 ,  C10M2207/282 ,  C10M2207/283 ,  C10M2207/286 ,  C10M2207/289 ,  C10M2207/34 ,  C10M2219/084 ,  C10M2221/043 ,  C10N2240/401 ,  C10N2240/62

    摘要： The compounds are esters having the formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently alkyl, cycloalkyl, alkylthioethyl or alkylpolyoxyalkylene, Z is oxygen or sulfur, R.sub.3 is the group ##STR2## R.sub.4 is hydrogen, alkyl, cycloalkyl or .alpha.-methylbenzyl, R.sub.5 is alkyl or cycloalkyl, R.sub.6 is hydrogen or alkyl and, provided when R.sub.4 is hydrogen, R.sub.6 is alkyl and R.sub.5 is located on the carbon atom ortho to the hydroxyl group, and A is a covalent carbon bond or lower alkylene.The esters of this invention are prepared by usual esterification procedures from a thioether isopropanol and an acid of formula ##STR3## or a derivative thereof, preferably the methyl ester. The thioether isopropanols are prepared by reaction of epichlorohydrin with an alcohol or mercaptan followed by the opening of the oxirane ring with a mercaptide to give the desired thioether isopropanol.The compounds are useful as stabilizers for organic materials, especially polyolefins, which degrade upon exposure to light and heat.

    摘要翻译： 化合物是具有下式的酯：其中R 1和R 2各自独立地是烷基，环烷基，烷基硫代乙基或烷基聚氧化烯，Z是氧或硫，R 3是氢，烷基，环烷基或α-甲基苄基， R5是烷基或环烷基，R6是氢或烷基，当R4是氢时，R6是烷基，R5位于羟基邻位的碳原子上，A是共价碳键或低级亚烷基。

    Hindered hydroxyphenylalkanoates of thioether isopropanols
    6.
    发明授权
    Hindered hydroxyphenylalkanoates of thioether isopropanols 失效
    硫醚异丙醇的受阻羟基苯基链烷酸酯

    公开(公告)号：US3954839A

    公开(公告)日：1976-05-04

    申请号：US532127

    申请日：1974-12-12

    申请人： Martin Dexter ,  David Herbert Steinberg

    发明人： Martin Dexter ,  David Herbert Steinberg

    IPC分类号： C08K5/134 ,  C07C149/20

    CPC分类号： C08K5/1345 ,  C10M2207/281 ,  C10M2207/282 ,  C10M2207/283 ,  C10M2207/286 ,  C10M2207/289 ,  C10M2207/34 ,  C10M2219/084 ,  C10M2221/043 ,  C10N2240/401 ,  C10N2240/62

    摘要： The compounds are esters having the formula ##EQU1## wherein R.sub.1 and R.sub.2 are each independently alkyl, cycloalkyl, alkylthioethyl or alkylpolyoxyalkylene, Z is oxygen or sulfur, R.sub.3 is the group ##SPC1##R.sub.4 is hydrogen, alkyl, cycloalkyl or .alpha.-methylbenzyl, R.sub.5 is alkyl or cycloalkyl, R.sub.6 is hydrogen or alkyl and, provided when R.sub.4 is hydrogen, R.sub.6 is alkyl and R.sub.5 is located on the carbon atom ortho to the hydroxyl group, and A is a covalent carbon bond or lower alkylene.The esters of this invention are prepared by usual esterification procedures from a thioether isopropanol and an acid of formula ##SPC2##Or a derivative thereof, preferably the methyl ester.The thioether isopropanols are prepared by reaction of epichlorohydrin with an alcohol or mercaptan followed by the opening of the oxirane ring with a mercaptide to give the desired thioether isopropanol.The compounds are useful as stabilizers for organic materials, especially polyolefins, which degrade upon exposure to light and heat.

    摘要翻译： 这些化合物是具有式R1-Z-CH2CHCH2-S-R2 | OR3的酯，其中R1和R2各自独立地是烷基，环烷基，烷基硫代乙基或烷基聚氧化烯，Z是氧或硫，R3是基团R4是氢，烷基，环烷基 或α-甲基苄基，R 5是烷基或环烷基，R 6是氢或烷基，并且当R 4是氢时，R 6是烷基，R 5位于与羟基邻位的碳原子上，并且A是共价碳键或更低 亚烷基。

    Stabilized olefin polymer insulating compositions
    7.
    发明授权
    Stabilized olefin polymer insulating compositions 失效
    稳定的烯烃聚合物绝缘组合物

    公开(公告)号：US4689362A

    公开(公告)日：1987-08-25

    申请号：US881542

    申请日：1986-07-02

    申请人： Martin Dexter

    发明人： Martin Dexter

    IPC分类号： C08L23/00 ,  C08L23/02 ,  C08L87/00 ,  H01B3/44 ,  C08K5/54 ,  C08L83/12

    CPC分类号： H01B3/441 ,  C08L23/02 ,  C08L23/06 ,  C08L23/10 ,  C08L23/22

    摘要： Insulating material for electric wire and cable which consists of an olefin polymer stabilized against electrical failure resulting from voltage stress by the presence therein of a polydialkylsiloxanepolyoxyalkylene block or graft copolymer, the electric wire coated with said insulating material and a method for stabilizing said insulation.

    摘要翻译： 电线电缆绝缘材料由一种烯烃聚合物组成，该烯烃聚合物通过存在聚二烷基硅氧烷聚氧化烯嵌段或接枝共聚物，由电压应力稳定而导致的电气故障，涂覆有所述绝缘材料的电线以及用于稳定所述绝缘体的方法。

    Unsaturated hydantoin coagents
    10.
    发明授权
    Unsaturated hydantoin coagents 失效
    不饱和乙内酰脲助剂

    公开(公告)号：US4167465A

    公开(公告)日：1979-09-11

    申请号：US886205

    申请日：1978-03-13

    申请人： Hyman W. Zussman ,  Martin Knell ,  Martin Dexter

    发明人： Hyman W. Zussman ,  Martin Knell ,  Martin Dexter

    IPC分类号： C07D233/74 ,  C08F291/00 ,  C08F8/00

    CPC分类号： C07D233/74 ,  C08F291/00

    摘要： Unsaturated hydantoin derivatives of the formula ##STR1## where R.sub.1 and R.sub.2 are alkyl, R.sub.3 is vinyl, allyl, alkylene, substituted alkylene or polyvalent aralkyl, R.sub.4 is vinyl or allyl and n is 1 to 3, are coagents for curing polymeric compositions to improve their physical, chemical and electrical properties. These coagents are particularly useful in crosslinking PVC, polyethylene, chlorinated polyethylene and poly(ethylene/vinyl acetate) compositions.

    摘要翻译： 其中R1和R2是烷基，R3是乙烯基，烯丙基，亚烷基，取代的亚烷基或多价芳烷基，R4是乙烯基或烯丙基，n是1至3的不饱和乙内酰脲衍生物是用于 固化聚合物组合物以改善其物理，化学和电学性质。 这些助剂在交联PVC，聚乙烯，氯化聚乙烯和聚（乙烯/乙酸乙烯酯）组合物中特别有用。